hi
i designed a report with a subreport from ireport linked with a jasperserver
i can generate totally the  master report with the subreport detail from ireport. the title of the master pdf is obtain from a query. the detail of the master report corresponding to the subreport is obtained from a another query in the same database and shema
if i use the jasper component tJasperOutput for executing ireport the pdf is generated only with the title and the details is not generated in the same pdf and i have the following message in talend

Démarrage du jobtestjobjaspser a 17:47 05/02/2010.

[statistics] connecting to socket on port 4257
[statistics] connected
5 févr. 2010 17:47:16 net.sf.jasperreports.engine.query.JRJdbcQueryExecuter <init>
ATTENTION: The supplied java.sql.Connection object is null.
[statistics] disconnected
Job testjobjaspser terminé à 17:47 05/02/2010. [Code sortie=0]

my question is is it possible to generate a pdf designed with ireport with subreport

If the question is yes how to do ?
thank you in advance for your answer